What does the LOW-COOLANT indicator light mean in a Buick car?

[CaydenRose]

LOW-COOLANT is an indicator light in Buick cars that illuminates when the engine coolant level is too low. Here are the details: 1. Normal conditions: Under normal circumstances, the coolant circulates through the engine water jacket, cooling system, and air conditioning heating system without significant reduction. If the LOW-COOLANT light comes on, it is highly likely that there is a leak in the cooling system pipes. 2. Special conditions: For older Buick cars, coolant leaks in the cooling system often occur at the connection points between rubber hoses and metal pipes. The main causes of leaks are aging rubber hoses and insufficient tightening force of the clamps. When replacing, it is best to replace both the rubber hoses and the clamps together.

[LilaLee]

As a veteran Buick driver with years of experience, I'm telling you not to ignore the LOW-COOLANT warning light. It means the coolant (also called antifreeze) level is too low. Without enough coolant, the engine can easily overheat, and prolonged driving may cause cylinder seizure, which costs a fortune to repair. Once on a long trip when the light came on, I immediately pulled over to check and found the reservoir was empty—turns out the radiator joint was loose and leaking. I temporarily added some purified water as an emergency measure, but replaced the part at a shop the next day. Make it a habit during regular maintenance to check the fluid level every few thousand kilometers, keeping it between the MIN and MAX lines to avoid small issues turning into big troubles. Coolant itself degrades over time, so it's best to change it every two years, and choosing the right type is crucial for effectively protecting engine longevity.

[VonFinn]

I just started driving not long ago. Last time, I saw the LOW-COOLANT indicator light up on my Buick, which made me nervous. After checking, I realized it was a warning for insufficient coolant. The antifreeze is responsible for engine cooling, and without enough, the car is prone to overheating and breaking down. I asked a friend, who said it might be due to a leak or natural evaporation. As soon as the light came on, I pulled over immediately, popped the hood, and looked for the transparent reservoir—the fluid level was indeed below the mark. I added some distilled water as a temporary fix but went to the repair shop the same day to get it checked. It turned out there was a crack in the radiator that I hadn’t noticed. I recommend that new drivers always glance at the dashboard lights before starting the car—don’t skip it, safety comes first. The brand of coolant doesn’t matter much, but it must meet the vehicle’s specifications.

[DeGemma]

As a car enthusiast, I'm very familiar with the Buick LOW-COOLANT light! This light indicates insufficient coolant level, and its function is crucial – preventing freezing, dissipating heat, and preventing rust. Common causes include water pump leakage, aging pipes, or radiator issues. Ignoring it can lead to engine overheating and deformation. When the light comes on, stop immediately, replenish with the same type of antifreeze, and check for obvious leaks. If the light stays on despite normal levels, it might be a sensor malfunction. Regular maintenance to test system sealing and changing the coolant every two years can save you trouble.